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22 lis 2024 · Beryllium, chemical element that is the lightest member of the alkaline-earth metals of Group 2 of the periodic table. It is used in metallurgy as a hardening agent and in many outer space and nuclear applications. It is a steel-gray metal that is quite brittle at room temperature.
Beryllium is a chemical element; it has symbol Be and atomic number 4. It is a steel-gray, hard, strong, lightweight and brittle alkaline earth metal. It is a divalent element that occurs naturally only in combination with other elements to form minerals. Gemstones high in beryllium include beryl (aquamarine, emerald, red beryl) and chrysoberyl.
Beryllium is a silvery-white metal. It is relatively soft and has a low density. Beryllium is used in alloys with copper or nickel to make gyroscopes, springs, electrical contacts, spot-welding electrodes and non-sparking tools. Mixing beryllium with these metals increases their electrical and thermal conductivity.
16 mar 2024 · Beryllium forms several intermetallic phases with carbon, all transition metals; the alkaline earth metals magnesium, calcium, and strontium; and the metalloids boron, arsenic, tellurium, etc. Some of these phases have extensive homogeneity ranges and high melting points.
Physical Characteristics. Beryllium is a silver-grey metal and is hard and brittle at room temperature. It is a low-density metal and have a density of around 1.85 g/cm 3 at room temperature. It has an atomic mass of 9.012 and atomic number of 4. Beryllium belongs to the Group 2 (IIA) of periodic tables which makes it one of the alkaline earth ...
30 cze 2023 · In its purest form, beryllium is a steel-gray and lightweight alkaline earth metal. Due to its physical properties, beryllium is useful as a hardening agent in alloys, making aerospace material, and used as a filter for radiation.
Beryllium is the first member of the alkaline earths but its chemical properties are more similar to aluminum – a property described as “diagonal similarities” (Fig. 1) as discussed below. Beryllium is an expensive metal used in small and specialized industries.
